pitman



H. L. PITMANT 4 COMBINED TYPEWRITING AND COMPUTING MACHINE.

APPLICATION FILED JAN. 17, 1918.

1,386,653. Patented Aug. 9,1921.

l l'fnessea- Affor' ey H. L. PITMAN.

4 COMBINED TYPEWRITlNG AND COMPUTING MACHINE.

APPLICATION FILED JAN. 17. 1918.

i,386,653. P tentedAug. 9,1921.

5 SHEETS-SHEET 2- /m/en for":

Affo 2y I Wfnessea- H. L. PITMAN. COMBINED TYPEWRITING AND COMPUTINGMACHINE.

APPLICATION FILED JAN-17' I9I8.'

2 0. mm e u H P w 6%. 0 2.1 V 1T um fl 4/ n5 H. L. PITMAN.

COMBINED TYPEWRITING AND COMPUTING MACHINE.

APPLICATION FILED JAN. l7, 19H].-

Patented Aug. 9, 1921.

5 SHEETS-SHEET 5- UNITED STATES PATENT OFFICE.

HENRY L. PITMAN, OF EAST ORANGE, NEW JERSEY, ASSIGNO-R T0 UNDERWOOD COM-PUTING MACHINE COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

COMBINED TYIPEWRITING AND COMPUTING MACHINE. I

Patented Aug. 9, 1921.

Application filed January 17, 1918. Serial No. 212,213.

To all whom it may concern:

Be it known that I, HENRY L. PITMAN, a citizen of the United States,residing in East Orange, in the county of Essex and State of New Jersey,have invented certain new and useful Im rovements in CombinedTypewriting and omputing Machines, of which the following is aspecification.

This invention relates to combined typewriting and computing machines,and more particularly to machines provided with means for obtaining thecross-total of numbers typewritten in a single line in different columnson the work-sheet.

This invention is illustrated in connection with the improvementsdisclosed in my co-pending applications No. 198,375, filed October 25,1917 (now Patent No. 1,350,387, dated Aug. 24, 1920), and No. 2 1,390,filed April 28, 1915 (now Patent No. 1,308,506, dated July 1, 1919).

In said application No. 198,375, the crosstotalizer is arranged toalternately travel with the t pewriter carriage and return independent ythereof repeatedly during each run of the carriage. For this .purpose,tappets or dogs provided on the typewriter carriage pick up saidcross-totalizer successively at different points in the run of thetypewriter carriage, and cause said crosstotalizer to move step-by-stepwith the typewriter carriage through the computing zone. When thetypewriter carriage steps out of a computing zone, the cross-totalizeris dropped or released 'fromthe carriage and returned to normalposition, read to be picked up by the next tappet on t e type-' writercarriage.

In practlce 1t- 15 often necessary to set back the typewriter carriagefor making corrections in the same line of writing and for otherpurposes. Sometimes this is accomplished by the hand of the operatorpresslng the carriage directly to the left; but in many cases it isaccomplished by the use of a back-space key, the depression of whichsets the carriage back a single letter-space. Repeated operation of thekey will set the carriage back two or more letter-spaces.

In setting back the carriage, it may sometimes be the case that thecarriage is standing beyond the computing zone, and its backward orleftward movement will carry it into such zone. Such leftward movement,

as just explai-ned,may be accomplished by the back-space key orotherwise; the carriage coming to rest within the computing zone. One ofthe main features of the invention relates to the operation of parts asthe carriage is backed into a computing zone, particularly various partsof the computing mechanism.

The ty Writer carriage and the crosstotalizer a've a certaindenominational relationship with each other. This relationship isdetermined by the position of the tappet carried on the typewritercarriage. This relationship is temporarily broken, however, when thetypewriter passes out of a computing zone; and in said application No.198,37 5 provision was made whereby the back-space key for thetypewriter carriage could also reset the crosstotalizer accordingly; orin other words, the operation of the back-space key to set back thetypewriter carriage into a computing zone, also moved thecross-totalizer (with its associated parts) to reestablish the formerdenominational relationship between the typewriter carriage .and thecross-totalizer.

The back-space key is not only used for back-spacing the carriage intothe computing zone, but may also be used for backspacing the carriage atany other place during its traverse. The connection between theback-space'key and the crosstotalizer, in said' pending application, issuch that any actuation of the back-space key will move thecross-totalizer, whether the typewriter carriage is in a computing zoneor not.

For the purpose of relieving the backspace key of this unnecessaryoperation of carriage subsequent operations of the back-space key whilethe typewriter carriage is in the computing zone, will not operate thecrosstotalizer.

For these purposes, the connection between the-back-space key and thecross-totalizer may be shifted from efi'ective to ineffective-positionby means of a t'eeler or intermediate element that is arranged to beengaged by connections from the cross-totalizer, so that, when thecross-totalizer and its connections are in normal positions, said feelerwill be in position to make said connection effective as the baclnvardlytraveling typewriter carriage approaches the computing zone. Thetypewriter carriage may control the feeler through a cam arranged to beengaged by the tappet on said carriage. This cam may be engaged by thetypewriter carriage when the latter is a short distance from thecomputing zone. I

From this it will be seen that the connections between thecross-totalizer and the back-space mechanism are controlled jointly,dependent upon the position of the typewriter carriage with relation tothe comput ing zone, and upon the position of the connections from thecross-totalizer with relation to the tappet on the typewriter carrlage.

The present invention also provides improved means whereby the numeralkeys of the typewriting machine will be locked it the typewritercarriage. is moved back into a computing zone by hand without beingmoved back suificien'tly to reestablish its denominational relation withthe cross-totalizer. This locking of the numeral keys forces theoperator either to operate the back-space'key, or to move the typewritercarriage sufliciently back to cause the crosstotalizer to connect to thetypewriter carriage, and thus reestablish the proper denominationalrelationship between the two. This locking mechanism is under the jointcontrol of the feeler and the typewriter carriage, so that it will onlylock the numeral keys when the typewriter carriage is in the computingzone and the denominational relationship between the cross-totalizer andthe carriage is not established.

The present invention also provides an improved train of connectionsbetween the tappet on the typewriter carriage and the cross-totalizer.

Other features and advantages will hereinafter appear.

In theaccompanying drawings,

Figure 1 is a side view of the machine with parts broken away toshow theinterior structure.

Fig. 2 is a skeleton perspective view of theback-spacing mechanism forthe typewriter carriage and a connection to the backspacer key, whichmay be controlled by the typewriter carriage to render it effective orineffective for repositioning the cross-totalizer denominationally andrelatively to the typewriter carriage.

Fig. 3 is a rear view in elevation, partly broken away, to show themeans for locking the numeral keys when the typewriter carriage isbacked into a computing zone without the aid of the back-spacer key.This figure also shows the train of links and levers forming theconnection from the cross-computer carriage to the pickup bar engagingwith the pick-up dogs .on the typewriter carriage. The typewriter-arriage is shown as passing through a computing zone, and the crosscomputer carriage with its totalizer traveling therewith.

Fig. %l is a detail view, with the pick-up bar and the parts connectedthereto in their normal position; the carriagealpproaching a computingzone; with the pick-up bar ready to be caught by the movemcntof thepick-up dog corresponding to the position, on the typewriter carriage,of the next totalizer to enter the computing zone.

Fig. :3 is a view similar to Fig. 4, showing the cros'..'-(.-omputercarriagereturned to its normal position. due to the release of thepick-up bar from the pick-up dog, immediately after the movement of thetypewriter carriage out of the computing zone. This figure also showsthe numeral-key lock, which is actuated by the pick-up bar, as renderedeffective. and further shows the thrust lar, which forms part of theconnection from the baclespacer key to the cross-totalizer. as moved toits effective position, so that it may. by the depression of thebackspacer key, reconnect the pick-up hook with the previously-engagedpick-up dog, to reposition the cross-totalizer.

Fig. (5 is a view similar to Fig. 5, except that the back-spacer key isin its actuated position, and showingthe parts actuated thereby toreconnect the pick-up bar with the pick-up dog.

Fig. 7 is a detail section. taken on line T7 of Fig. and looking in thedirection of the arrows at said line, showing the relative arrangementof the pick-up bar, and how it engages with a fixed bracket to preventit from swinging whenit is in its normal position. Fig. 8 isa sectionalrear view. taken on the-line 8 8 of Fig. 7. and looking in the directionof the arrows, at said line.

Fig. 9 is a perspective view. showing the swinging lever comprising ashoe. which is actuated. when any one oi the pick-up dogs passes throughthe computing zone, to raise the pivoted intermediate lever thereon toan etfectivc osition to be actuated by the pickup bar to render thekey-locking mechanism necting link 42 [t p swing a back-spacer pawl andrepositioning connection effective.

I have shown my invention as applied to an Underwood machine, in whichalphabet keys 10 and numeral keys 11, when depressed, swing key-levers12 to rock bellcranks 13 about a fulcrum rod 14, to swing type-bars 15upwardly and rearwardly about a fulcrum 16, to cause types 17 to strikeagainst the front side of a rotatable platen 18. The platen 18 isrotatably mounted for line-spacing movements on a carriage 19, whichtravels back and forth on a front rail 20 and a back rail 21 forletter-feeding movements.

' For its letter-feeding movements, the carriage 19 is provided with arack-bar 22, which meshes with a pinion 23 to rotate the latter. Thepinion 23 is connected to rotate an escapement wheel 24 by the usualoneway acting pawls 25. The escapement wheel 24 is provided with teeth26, which cooperate with a loose dog 27- and a fixed dog 28 on a?dog-rocker 29, when the latter isvibrated by a universal bar 30,.engagedby heels31 of the type-bars 15 when the latter approach the printingpoint. The upper end of the dog-rocker is returned to its forward ornormal position by the usual Springs (not 'shown).

The carriage 19 may be moved to bring any denominational position of acolumn on the platen to the printing. point; To do this there isprovided a series of tabulator keys 32, as in the Underwood machine,which, when depressed, move plungers 33 against the tension of returnsprings 34, to bring the upper ends thereof into the path ofeffectively-set columnstops 35 on a stopbar 36 secured to the typewritercarriage by a bracket 37. The usual rack-releasing means (not showninthe drawings) may be actuated by any one of theplungers 33 to effect thereleasing of the carriage b raising the rack '22 out of engagement w1ththe eseapement pinion .23 at the proper time. The usual spring drum 37,Fig. 3, after the release of the carriage, moves the carriage on itsrails to the left until it is arrested by one of the effectivecolumn-stops coming into engagement with the projected plunger.The'tabulator key is then permitted to return to normal position, thuseffecting a reengagement between the feed rack 22 and pinion 23.

A back-spacer mechanism is provided for the typewriter carriage 19,which may be like that disclosed in the patent to Helmond No. 939,962,dated August 10, 1909, and may comprise a backspacer key 38, which, whendepressed, rocks a shaft 39 to swing the forward end of an arm 40,located near the center of the machine, downwardly against the tensionof a spring 41. :This movement of the arm 40 pulls downwardly .on acone,css 8 43 into engagement with the te'eth'on the feed rack 22, byswinging itabout a pivot 44 of an arm 45, upon which the pawl issupported at 46. After the pawl 43 is brought into engagement with theteeth of thefeed rack 22, it is arrested against further pivotalmovement in this direction by the upper end of the arm 45 striking therack 22, when a continued movement of the connecting link 42 becomesefi'ective to swing the pawl 43 in another direction about its pivot 46,to draw t-hecarriage backfrom left to right, thus back-spacing thecarriage one letter-space position. A spring 47 returns the back-spacerpawl 43 to its normal position relatively to the arm 45, where it.1sarrested by a stop 48. v p The computing mechanism may be similar tothat shown in my co-pending application, Seria-1 No. 24,390, hereinreferred to. Each numeral keymay comprise a cam 50, by which a commonindexing element (not shown in the drawings, but clearly described in myco-pending application) may be moved. through angular distances varyingin values from 1 to 9 due to the different shapes of the cams 50 on thedifferent numeral key These-movements of'the indexing eleme t may betransmitted to a master wheel 52 to rotate the latter through variousangular distances corresponding to the value of the depressed numeralkey. The master wheel 52 is so positioned that its movements may betransmitted to anyone of a plurality of column or footing totalizers 51;.the master wheel engaging with a series of computing wheels 53, whichtransfer the values to a series of dial. wheels 54 contained within eachtotalizer. The totalizers 51 are mounted for traveling movement relativeto the master wheel '52, so that the computing wheels may be broughtinto cooperative relation successively with the master wheelasthetypewriter carriage passes through a computing zone. The totalizers maybe adjustably secured to a supporting bar or computer carriage 56connected to the typewriter carriage 19 to travel therewith, by arms'57and may be guided in its traveling movementby a rail 58.

- The depression of a numeral key 11 while another numeral key is activeis prevented by suitable locking means to avoid a malaction of thecomputing mechanism. For this purpose, each key lever 'has pivotedthereon a. pendent link 59, provided witha rearward extension 60, which,when its associated key '11 is depressed, is forced between a pair ofpivoted pawls 61 to spread them, thereby moving-the-pawls associatedwith the other keys to an effective position to prevent the entrancetherebetween of the rearward projections associated therewith. V

all of the numeral keys are pivotally supported at 62 on a plate 63, andare suspended between-two studs 64 with an amount of play of the pawlsbetween the studs 64 substantially equal to the thickness of one of therearward projections 60;. thus, by the depression of any one of thenumeral keys, this play of the locking pawls is taken up to prevent thedepression of another key before the return of the actuated key. Thependent links 59 are guided at their lower ends in a slot 63 in across-bar 63 to which the plate 63 is secured.

In addition to the column-computing unit comprising the master wheel 52,which may be a relatively-fixed element, and the totalizer 51,preferably a traveling element, there is also provided a cross-computingunit having a similar relatively-fixed element and a a travelingelement." To effect the crosscomputing of numbers written in severalcolumns, there is provided in the cross-computing unit a second masterwheel or relatively-fixed element 66, which may beconnected to themaster wheel 52 to be driven therewith in a manner similar to thatdisclosed in my co-pending application, Serial No. 186,098, filed August14, 1917 (now Patent N0. 1,345,460, dated July 6, 1920), which maycomprise a suitable train of mechanism extending from the master wheel52, having a horizontal shaft 67 which, through bevel gears 68 and69,drives a vertical shaft 70, which, in turn, by means of bevel gears 71and 72 drives a shaft 73, which may be connected to drive the masterwheel 66. These movements of the master wheel 66 may be transferred to across-totali zer or traveling element 74, through the intermediary of aseries of computing wheels 75, to a series of dial wheels 76 containedwithin the cross-totalizer; The cross-totalizer 7 4 maybe adjustablymounted on a sup porting bar or cross-computer carriage 77, which may beintermittently connected (in a manner which will be presently described)to move in synchronism with the typewriter carriage 19 and the computercarriage 56 when the totalizers 51 pass through a computing zone. Toguide the cross-computer carriage or sub-carriage 77 in its travelingmovement, a suitable guide rail 78 may be provided.

To intermittently pick up the cross-totalizer 74 so that it may travelthrough a computing zone simultaneously with any one of the footingtotalizers, there is provided a series of adjustable elements or pick-updogs 80 on a bar 81, secured to the bracket 37 of the typewritercarriage. The pick-up dogs or elements '80 in construction are similarto the column-stops 35. Both column-stops and pickup dogs may bekey-set, as shown in my 00- ending application, Serial No. 198,375. achof the said pick-up dogs 80 engages with the projection 82 on the pickupbar 82 when the corresponding totalizer 51 enters a computing zone;thereby conmeeting the cross-totalizer carriage with the typewritercarriage.

In the present invention, during the passage of a totalizer 51 throughthe computing zone, the pick-up element or bar 82, which forms part of atrain of mechanism extending between the typewriter or main carriage andthe cross-totalizer or subcarriage, is drawn from its normal position(Fig. 4) to rock a bell-crank or rock-arm 83 about its pivot 84, securedto the machine frame in any convenient manner. This causes alaterally-projecting arm 85 of the bell-crank 83, to move downwardly athrust link 86, to swing an arm 87 and rock a shaft 88 convenientlysupported on the machine frame. The rocking of the shaft 88 causes anarm 89 mounted at its forward end to draw on a link 90 and move againstthe tension of a return spring 91. The link 90 is pivotally connected at92 to the crosstotalizer carriage 77, so that the latter is moved withthe said link, and thus the crosstotalizer 74 moves in synchronism withthe .footing totalizer 51.

The pick-u bar 82 normally occupies the position in igs. 4' and 7, whereit is held slightly depressed by an offset 93 thereon which underlies aportion 94 of a fixed bracket 95. During the primary advancing movementof the pick-up bar, the offset 93 movesput of engagement with theportion 94 11 allow a spring-actuated lever 97 to swlng the pick-up barabout its pivot until a pin 96 on the pick-up bar strikes the upper sideof a slot 95 formed in the bracket 95. This swinging movement of thepick-up bar effects a better connection between the pickup bar and thepick-up dog, by means of a slot 98 in the pick-up bar 82. Thus, thepick-up bar 82 is positively connected to the pick-up dog againstrelative movement in either direction while the corresponding totalizerpasses through a computing zone. The pick-up bar 82 is released from thepickup dog 80, after Writing the last digit in a computing zone, b thepin 96 engaging with a cam 96' on fixe bracket 95, which swings thepick-up bar 82 about its pivotal connection against the spring-actuatedlever 97, so as to withdraw the projection 82 to clear the pick-up dog80, thus permitting the return spring 91 to restore the pick-up bar andthe cross-totalizer74 to their normal position, It will be seen thatafter the pickup bar becomes released from the pick-up dog, the pick-upbar again swings u wardly until the pin 96 strikes the upper si e of theslot 95 on which it slides until the latter part of the return movementof the pick-up bar, at which time the latter is again swung downwardlyby means of a cam 99 (Fig. 8)

on the pick-up bar, engaging with a cam 99 on the portion 94 of thefixed bracket 95, thus bringing the pick-up bar to its normal depressedposition to be engaged by the next pick-up dog 80.

It will be seen that when one of the totalizers 51 is passing through acomputing zone with the cross-totalizer 74, the back-spacer key 38 iseffective, through the connections hereinbefore described. to back-spacethe typewriter carriage 19, thus back-spacing the totalizer 51 and thecross-totalizer 74, which at this time is positively connected to thetypewriter carriage by means of the pick-up bar 82. It will beremembered that after the last digit is written in a computing zone, thecrosstotalizer 74 becomes disconnected from the typewriter carriage andmoves back to its normal position to the right of the master wheel 66.As in my co- 'pending application, Serial No. 198,375, I

have provlded means actuable by the backspacer key 38 to reconnect thecross-totalizer 74 with the typewriter carriage, by means of the pick-upbar 82, to bring the cross-totalizer into register denominationally withthe totalizer 51 when the latter is back-Spaced after writing the lastdigit 1n a computing zone.

To reconnect the cross-totalizer 74 during a back-spacing operation ofthe carriage 19 to bring one of the totalizers 51 back into a computingzone, the back-spacer key 38, when depressed, pulls downwardly on a link100 to swing an arm 101 extending from. a short rock shaft 102, whichmay be mounted on a suitable bracket 103, secured to the machine frame.The forward end of the, rock shaft 102 has a downwardly-p'rojecting arm104 to move a thrust link 105 laterally, so that an engaging portion 106thereof,-when the link 105 occupies its effective position, as shown inFig. 5, engages with a pin 107 on a bell-crank 108 to swing the latterabout a fixed pivot 109so as to draw on a link 110 connected to a branch111 of the arm 89. This causes the rocking of the shaft 88 to movedownwardly the free end of the arm 87, to draw the link 86 downwardlyand rock the bell-crank 83 about its pivot 84, thus moving the pick-upbar and. consequently the cross-totalizer from the position indicated inFig. 5 to that indicated in Fig. 6, where the pick-up bar has beenreconnected with the previously-engaged pick-up dog, and thecross-totalizer repositioned relatively to its master wheel.

From the foregoing, it will be understood that when the carriage isback-spaced, the column-totalizer or traveling element 51 is back-spacedwith respect to the master wheel or relatively-fixed element of thecolumncomputing unit, and during this movement,

which is caused by the back-spacer key 38,

the thrust bar 105 moves the cross-t'otalizer or traveling element ofthe cross-computing unit from a normal retracted position to repositionit relatively to' the master wheel or relatively-fixed element 66,thereby. registeringthe two totalizers 51 and 74 denominationally withrespect to the master wheels 52 and 66, respectively. This operationalso re-registers the cross-totalizer denominationally relatively to thetypewriter car-' 107. This break also permits the thrust bar 105 to beshifted, to render it effective, as will presently be described, so thatthe crosstotalizer may be repositioned thereby. To permit an actuationof the back-spacer key 38, without disturbing the cross-totalizer 74,the thrust bar 105, which normally occupies the position indicated inFigs. 3 and 4, is

provided with a cut-out or slot 112, which, whenthe cross-totalizer isin its normal position, is in alinement with the pin 107, as indicatedin Fig.4, so that the back-spacer key 38 may effect the back-spacing ofthe typewriter carriage, but the thrust link 105 will move idly over thepin 107, due to the cutout 112. r

The means for rendering the back-spacer key effective to position thecross-totalizer 74, or, in other words, the means for rendering thethrust link 105 effective, which is actuated by the back-spacer key,comprises a lever 113, the forward end of which passes through a slot114 in the thrust bar 105, which permits the latter to be movedindependently of the lever 113. When the typewriter carriage is outsideof a computing zone, the lever 113 occupies the position indicated inFigs. 1, 2 and 3, and is held in this position by a spring 116, toretain the thrust bar 105 ineffective. The spring pulls downwardly onone end of a pivoted lever or intermediate element 117 to swing thelatter about its floating fulcrum 118 mounted on a swinging lever 119,to swing therewith about a pivot 120 on a bracket 121 secured to themachine frame. The tendency of the spring 116 to swing the lever 117about its pivot tends to force downwardly a link 122 connected to therear of the pivotdever 113, thus tending to hold the forward end thereofand consequently the free end of the thrust bar 105 in a raised position(Figs. 3 and 4).

The mechanism, including the lever 11?, for raising or lowering thethrust bar 105 occupies an ineffective position when the typewritercarriage is outside of a computing zone, as indicated in Fig. 4. When,however,the' carriage enters the computing zone, the pick-up dog 80corresponding to the same position engages with a shoe 123, secured-tothe swinglng lever 119.,to swing the latter about its pivot'120, thuscarrying therewith the fulcrum 118 to swing the free end of the pivotedlever 117 upwardly about its point of connection with the link 122 fromthe Fig. 4 to the Fig. 3 position. The shoe 123 is of such a length-andin such a position-as to be engaged by the pick-up dog when itsassociated totalizer enters a computing zone, and to hold the free endof the pivoted lever 117 in the Fig. 3 position for one letter-spaceposition beyond the digit of lowest denomination. The pick-up barbecomes" released from the pick-up dog immediately after the digit oflowest denomination is written, by means of the pin 96 which at thistime engages with the cam 96, thus permitting the pick-ugjbar 82 toreturn to its normal position. uring the latter part of thereturnmovement of the .pick-up bar,

engages with an inclined face or cam 125 on-the free end of the pivotedlever 117, to swing the latter about its pivot 118 and raise theconnected end thereof to pull upwardly on the link 122, to swing thelever 113 about its fulcrum 115 and swing downwardly its forward end,thus carrying with it the free end of the thrust bar'105 to itseffective position (Fig. 5), where the engaging portion 106 is inalinemen't or coiiperative relation with the pin 107. The same conditionwill arise in case pick-up bar 82 becomes disconnected, accidentally orotherwise, from a dog 80 during the passage ofsaid dog through acomputing zone. It will be seen that. if the back-spacer key is nowactuated, the typewriter carriage will be back-spaced, and that thecross-totalizer carriage will be reconnected therewith, (Fig. 6), ashereinbefore described. Thus, it will be understood that the means,comprising the intermediate. lever 117, for rendering the thrust bar 105effective is dependent for its effectiveness upon the position of thecarriage and is actuable by the which forms part of the train 0mechanism extending between the cross-totalizer and the typewritercarriage.

Let it be assumed that the typewriter carriage has passed out of acomputing zone,

and the swinging lever 119 is 1n its lower.

position with the, parts in the Fig. 4 position; if the carriage is nowmoved in a reverse letter-feed direction to a computing zone, withoutthe aid of the back-spacer key, the nearest ick-up dog or adjustable'element 80 will engage with the shoe 123 to swing'the lever 119 aboutits ivot, to swing the intermediate lever 117 a out the bentoif portion124 on the pick-up bar, which a bent-off portion 124 thereof I ick-upbar,

at this time acts as a fulcrum for the inter mediate lever. Theintermediate lever pulls upwardly on the link 122 to. render the thrustbar 105 effective, and at the same time lock the numeral keysagainstactuation, as will presently be described It will be seen thatduring this actuation of the intermediate element 117, it acts as alever of the third order, the connection 118 to the swingin lever 119acting as the point ofapplication therefor, and the pick-up bar 82,through the intermediary of the bent-oil portion 124, acting as afulcrum.

The numeral keys are locked to compel the operative to actuate theback-spacer key 38 w on the typewriter carriage is moved back into acomputing zone without the aid of the back-spacer key. For this purpose,I haverovided, as in my co-pending application, erial No. 198,375, anautomaticallyoperated numeral-key lock. In the present invention,however, I preferably use the pivoted locking pawls 61, which are usedto revent the depression of another numeral ey when a numeral key is inits actuated position. It will be remembered that the pawls aresuspended between two studs 64 with sufficient" play therebetween topermit the entrance of the offset portion 60 of one of the pendants 59between its associated pawls. Thus, to lock the numeral keys when thetypewriter carriage is backed intoa computing zone, without theassistance of the back-spacer key, I have provided the lever 113 with apendent link 126, having a rear- 100 ward extension 127 thereon, whichis forced v between two of the pawls' ,61 simultaneously witli'therendering effective of the thrust bar by an actuation. of the lever113,-

-which is caused, for example, when the pick- 1 up dog at the right-handside of Fig. 4 is moved leftwardly (during a return moveacts as afulcrum for the lever 117. vAny undue strain which-may be caused whenthe overlying projection 124 acts as a fulcrum for the lever 117 istaken up by the offset 93, (Figs. 5 and 7), on the pick-u bar, whichunderlies the portion 94 of the xed bracket 95 when the pick-up bar isin its normal or .120 retracted osition.

.It will understood that the repositioning connections for thecrossstotalizer and the key-lock are rendered effective simultaneouslyas the key-lock pendant 126 is con- 12.;

nected to the lever 113, which renders the thrust bar 105, forming partof the connection from the back-s acer key, effective. As indicated inFig. 5, otter-feeding movement of the carriage from the lastletter-space in 130 a computing zone to the first letter-space outsidethereof will render effective the connections between the back-spacerkey and the cross-totalizer and also the key-lock. Further movement ofthe carriage in a letter-feeding direction by suitable means,

actuation of the back-spacer key, there is provided an offset 130, Figs:2 and 3, on the thrust bar 105, which moves under a retaining stud 131,secured to a suitable bracket 132 on the machine frame. This is founddesirable, as, during the preliminary movement of the thrust bar 105,when actuated by the back-spacer key, the offset portion 124 of thepick-up bar moves out of engagement with the free end of the otherpivoted pawl 117, at which time, without the aid of the retaining pin131,-the spring 116 would break the effective relation between thethrust rod 105 and the stud 107 on the bell-crank 108.

It will be remembered that the shoe 123 will be retained effective inits upperoractuated position for one letter-space after the last digithas been written in a computing zone, (Fig. 5.) It will also be seenthat when the shoe 123 and the pick-up dog 80 occupy this relativeposition, the thrust bar 105 occupies its effective position. Thus, whenthe back-spacer key 38 is actuated immediately after the writing of thelast digit in a computing zone, it will be effective to reposition thecross-totalizer relatively to the typewriter carriage by back-spacingthe typewriter carriage one letter-space and reconnecting the pick-uphook with the previously-engaged pick-up dog.

If the back-spacer key is actuated with the thrust bar 105 in itsinefi'ertive position, Fig. 4. the offset portion 130 thereof will rideover the pin 131 to prevent the shifting of the thrust rod during itsactuation by the back-spacer key. If the typewriter carriage, previousto the depression of the back-spacer key, occupies a position with oneof the ick-up dogs 80 immediately to the right of the shoe 123,indicated in dotted lines, (Fig. 4) the dog will, by the actuation ofthe back-spacer key, raise the shoe to swing the lever 119, thuscarrying with it the fulcrum 118, which, at this time, isv

effective to swing the intermediate lever 117 and cause an upward pullof the connecting link 122. It'will also be remembered that the thrustbar 105 is at this time riding over the pin 131; therefore, anindependent movement of the link 122, relatively to the thrust bar 105,is permitted by providing a yielding connection between the connectinglink 122 and the operating lever 113.

one end of which is connected to the link 122, the other end beingconnected to the operating lever 113. The lower end of'the connectinglink 122 is provided with a slot 134 to permit this independentmovement.

Variations may be resortedto within the scope of the invention, andportions of the improvements may be used without others. Havingthusdescribed my invention, I claim:

1. The combination with a typewriter car-- riage, of a cross-totalizer,means to cause said cross-totalizer to travel intermittently with saidcarriage, back-s acing means for said carriage, andmeans or renderingsaid back-spacing means effective so that said cross-totalizer may bere-positioned thereby, relatively to said typewriter carriage.

2. The combination w1th a typewriter carriage, of a cross-totalizer,pickup means, releasing means to cause said cross-tota-lizer totravelintermittently with said carriage, back-spacing means for said carriage,and means for rendering said back-spacing means effective to re-positionsaid crosstotalizer relatively to said typewriter carriage.

3. The combination with a typewriter carriage, of a plurality ofcolumn-totalizers traveling therewith, a master wheel therefor, across-totalizer, a master wheel, for said cross-totalizer, saidcross-totalizer being adapted to travel with "said typewriter ca rriagewhen one of the column-totalizers passes through a computing zone,meansto permit said cross-totalizer to return to its normal. positionwhen the typewriter carriage passes out of the computing zone, aback-spacer for said typewriter carriage, and means for rendering saidback-spacer efl'ective, sothat the cross totalizer may be repositionedthereby relatively to its master wheel.

- the traveling element of said cross-computer unit to travel with thetraveling element of the column-computer unit, when the carriage passesthrough a computing zone, means to permit said cross-computer travelingelement to return to a normal position after the carriage passes out ofthe com uting zone, a back-spacer for the trave ing element of saidcolumn-computer unit, a connection from said back-spacer for causing arelative-K re-registering of the elements of 4 said cross-computer unit,and means for rendering said connection efiective.

The combination with a typewriter carriage, of a cross-totalizer,pick-up devices on said typewriter carriage, a train of mechanismextending between the eross-totalizer and the typewriter carriage, saidtrain of machanismcomprising a pickup bar adapted to be engaged by oneof said pickup devices when the typewriter carriage "enters a computingzone, means for releasing said pick-up 'bar from said pickup deviceimmediately after the carriage passes out of the computing zone. so asto permit the crosstotalizer to return to its normal position, aback-spacer key for said typewriter carriage, means actuable by theback-spacer key for reconnecting said pickup bar with said pick-updevice, said means being normally inefiective, and means for automaticaly renderingsaid reconnecting means effective immediately after thetypewriter carriage passes out of the computing zone.

6. The combination with a typewriter carriage, of a- 'cross-totalizercarriage, a cross-totalizer thereon, pick-up means comprising a pickupbar and releasing means to cause the cross-totalizer carriage to travelintermittently with said typewriter carriage, a back-spacer key, meansactuable by said back-spacer key to reconnect said cross-totalizercarriage with saidtypewriter carriage by means of said pick-up bar. soas to reposition the cross-totalizer denominationally relatively to saidtypewriter carriage. said repositioning means being n ormallyineffective, and means actuable by said pick-up bar for rendering saidrepositioning means effective.

7. The combination with a typewriter car- I riage, of a cross-totalizer,means to cause the cross-totalizer to travel intermittently with saidcarriage, back-spacing means for said carriage, a broken connectionbetween said backspacing means and said cross-totalizer carriage, andmeans for shifting said connection to render it effective to be actuatedby the back-spacing means to reposition said cross-totalizer.

8. The combination with a typewriter carriage and ,a plurality oftotalizers arranged to travel therewith, of a cross-totalizer, pickupmeans and releasing means for causing the cross totalizer to travelintermittently with said carriage, back-spacing means, and a connectionfrom said backspacing means for repositioning said crosstotalizer toregister it denominationally with one of the totalizers on saidtypewriter'carriage, said connection being at times ineffective when thecross-totalizer is in a normal position, so as to permit a back-spacingmovement of the typewriter carriage without disturbing saidcross-totalizer.

9. The combination with a typewriter carriage. of .a cross-totalizercarriage, a crosstotalizer thereon, a train of mechanism extendingbetween said cross-totalizer carriage and said typewriter carriage,pick-up devices and releasing means engaging with said train ofmechanism to cause said cross totalizer to travel intermittently withsaid typewriter carriage, a back-spacer key, and means actuable by saidtrain of mechanism after its release from said pick-up devices, forrendering said back-spacer key effective intermittently: during thetravel of said typewriter carriage. to reposition said crosstotalizerrelatively to said typewriter carriage.

ll). The combination with a typewriter carriage. of a cross-totalizercarriage, a cross-totalizer thereon. a train of mechanism. including apick-up bar. extending between said cross totalizercarriage and saidtypewriter carriage, pick-up devices and releasing means, engaging withsaid train of mechanism to cause said cross-totalizer to travelintermittently with said typewriter carriage. a lmck-spacer key, andmeans controlled by said pick-up devices and actuable by said pickup barafter its release from said pick-up devices for rendering saidbackspacer key effective intermittently during the travel of thetypewriter carriage to re"- connect said cross-t-otalizer carriage withsaid typewriter carriage.

11-. The combination with a typewriter carriage, of a plurality ofadjustable devices arranged to travel therewith, a cross-totalizer,- atrain of mechanism extending between said cross-totalizer'and saidcarriage, said train of mechanism engaging with said adjustable devicesto cause said cross-totalizer to travel intermittently with said earriage. a back-spacer key, a connection from said laiek-spacer key, andmeans for automatically rendering said connection effective so that itmay, when actuated by the back-spacer key, reposition the cross-t0-talizer.

12. The combination with a typewriter carriage and a plurality oftotalizersarranged to travel therewith, of a cross-totalizer carriage, across-totalizer thereon, a train of mechanism extending between saidcross-totalizer carriage and said typewriter carriage, means engagingwith said train of mechanism to cause said cross-totalizer carriage totravel intermittentlywith said typewriter carriage, a back-spacer key, aconnection from said back-spacer key, and means for intermittentlyrendering said connection effective so that it may, when actuated by theback-spacer key, engage with said train of mechanism to reconnect thecross-totalizer carriage with the typewriter carriage to re-register thecross-totalizer denominationally with one of the toeffectiveness on theposition of the type writer carriage and actuable by said train ofmechanism. a

- 14. The combination with a typewriter *arriage, of a cross-totalizercarriage, a cross-totalizer thereon, back-spacing mechanism for saidtypewriter carriage, repositioning means for said cross-totalizercarriage actuable by said back-spacing mechanism, means for renderingsaid repositioning means effective, said rendering means comprising asettable intermediate element which is set automatically to an effectiveposition when the typewriter carriage enters a computing zone, and meansfor actuating said element in its set position, immediately after thetypewriter carriage passes out of the computing zone, so as to rendersaid repositioning means effective.

15. The combination with a typewriter carriage and a plurality oftotalizers arranged at columnar positionson said typewriter carriage, ofa cross-totalizer carriage, a cross-totalizer thereon, a train ofmechanism comprising a pick-up bar, pick-up dogs arranged at columnarpositions on said typewriter carriage corresponding with those of saidtotalizers, said pick-up dogs being adapted to engage with said pick-upbar at various ositions 1n the travel of the typewriter carriage, aback-spacer key, and an element engaged by said pick-up do s andactuated thereby to move an interme iate element, carried thereby, to aneffective position, so that the pick-up bar upon its release, from apick-up dog, is effective to actuate said intermediate element to rendersaid back-spacer key effective to reconnect said cross-totalizercarriage with said type writer carriage, to register the cross-totalizerdenominationally with one of the totalizers on said typewriter carriage.

16. The combination with a typewriter carriage, of a cross-totalizer, atrain of mechanism extending from said cross-totalizer to a positionadjacent said typewriter carriage, pick-up meansfor connecting saidtrain of mechanism with said typewriter carriage to cause thecrosstotalizer 'totravel with said typewriter carriage, releasing meansto render the pick-up means ineffective when the cross-totalizer hastraveled through a computing zone, a back-spacer key, normallyineffective back-spacer-key-actuated means for repositioning saidcross-totalizer, a controlling device for said normally ineffectivemeans, and means for automatically operating said controlling device torender said normally ineffective means effective, so that saidcross-totalizer may be positioned denominationally relatively to thetypewriter carriage by an actuation'of the back-spacer key.

17. The combination with a typewriter carriage, of a cross-totalizer,means including a pick-up element to cause said totalizer to travelintermittently with said carriage, a back-spacer for said typewritercarriage, a normally ineffective connection from said back-spacer toreposition said cross-totalizer, and means including an intermediateelement for rendering said connection effective,

said intermediate element being actuable by said pick-up element.

'18. The combination with a typewriter carriage, of a plurality ofadjustable elements traveling therewith, a cross-totalizer, meansincluding apick-up element-to cause said totalizer to travelintermittently with said carriage, a back-spacer for said typewritercarriage, a normally ineffective connection from said back-spacer toreposition said cross-totalizer, and means including an intermediateelement for rendering said connection effective, said intermediateelement being actuable by any one of said traveling elements when thetypewriter carriage is moved in a reverse letter-feed direction.

19. The combination with a typewriter carriage, of a plurality ofadjustable elements traveling therewith, a cross-totalizer, meansincluding a pick-up element to cause said totalizer to travelintermittently with said carriage, a back-spacer for said type ing toeffect the movement of said interme-- diate element.

20. The combination with a typewriter carriage, of a plurality of.adjustable elements traveling therewith, a cross-totalizer, meansincluding a pick-up element to cause said totalizer to travelintermittently with said carriage, a back-spacer for said typewritercarrlage, a normally ineffective con-- nection from said back-spacer toreposition said cross-totalizer, means including an intermediate elementfor rendering said connection effective, and a swinging element, saidintermediate element being pivotally mounted on said swingingelement,said adjustable elements engaging with said swinging element tomove'said intermediate element to an effective position to be actuated bysaid pick-up element upon the return movement of the latter to normalposition, thus rendering the connection from the backspacer effective.

21. The combination with a typewriter a reverse letter-feed movement ofthe type writer carriage to actuate said intermediate element, therebyrendering said connection from the back-spacer effective, the pick-upelement acting as a fulcrum for the intermediate element during itsmovement, while the pivot for said intermediate element on said swingingelement acts as a point of application for the swinging element to movesaid intermediate element.

22. The combination with a typewriter carriage, of a plurality ofadjustable elements traveling therewith, a cross-totalizer, meansincluding a pick-up element to cause said totalizer to travelintermittently with said carriage, a back-spacer for said typewritercarriage, a normally ineffective connection from said back-spacer toreposition said cross-totalizer, means including an intermediate elementfor rendering said connection effective, a swinging lever, and a shoe onsaid swinging lever, said intermediate element being pivotally supportedon said swinging lever and settable to an effective position through theii'itermediary of said adjustable elements which engage with said shoeon said swinging lever, said intermediate element being actuable as alever of the first order by said pick-up element, to render saidconnection from the back-spacer effective.

23. The combination with a typewriter carriage, of a plurality ofadjustable elements traveling therewith, a cross-totalizer,

means including a pick-up element to cause said totalizer to travelintermittently with said carriage, a back-spacer for said typewritercarriage, a normally ineffective connection from said back-spacertoreposition said cross-totalizer, means including an intermediateelement for rendering said connection effective, a swinging lever, and ashoe on said swinging lever, said intermediate element being pivotallysupported on said swinging lever, said adjustable elements beingeffective during the movement of the *arriage'in the reverse letter-feeddirection .to actuate said intermediate element to render saidconnection from the back-spacer effective, said pivoted element, duringits actuation, serving aS a lever of the third order, and said pick-upelement serving at this time as a fulcrum for said pivoted element.

24. The combination with a typewriter carriage, of a plurality ofpick-up devices traveling therewith. a cross-totalizer, means engagingwith said pick-up devices to cause said cross-totalizer to travelintermittently with said carriage, back-spacing means for said carriage,means aetuable by said backspacing means to reconnect said'cross-totaL'izer with a previously-engaged pick-up device. and means for retainingsaid reconnee-ting means in its effective position.

25. The combination with a typewriter carriage, of a cross-totalizer,means to cause said cross-totalizer to travel intermittently with saidcarriage, back-spacing means for said carriage, means actuable by saidback-- spacing means to reposition said cross-total izer relatively tosaid typewriter carriage, shifting means for said repositioning means,

and means to prevent a shifting movement of said repositioning meansduring the actuation thereof by said back-spacing means.

26. The combination with a typewriter carriage. of a cross-totalizer,pick-up means and releasing means to -ause said cross-totalizer totravel intermittently with said carriage, back-spacing means for saidcarriage, means actuable by said back-spacing means to reposition saidcross-totalizer relatively to said typewriter carriage. a spring forretaining said repositioning means in an ineffective position, means forrendering said repositioning means effective, and means for retainingsaid repositioning .means in its effective position against the actionof said spring, during the actuation of said repositioning means by saidbackspacing means;

27. The combination with a typewriter carriage, of a plurality ofpick-up devices traveling therewith. a cross-totalizer. means engagingwith said pick-up devices to cause said c'ross-totalizer to travelintermittently with said carriage, a back-spacer for said carriage,repositioning means, for said crosstotalizer, comprising a normallyineffective connection from saidbzick-spacer. means including anintermediate element for renderingsaid repositioning means effective,and a yielding connection between said intermediate element and saidrepositioning means,

to permit an actuation of said intermediate element without effectingsaid repositioning connection,

28. The combination with a typewriter carriage, of a plurality ofadjustable devices arranged to travel therewith, a crosstotalizercarriage, a cross-totalizer thereon, a'train of mechanism comprising aconnecting member extending from said cross-totalizer carriage andengaging individually with said adjustable devices, so as to cause saidcross-totalizer to travel intermittently with said typewriter carriage,a back-spacer key for said typewriter carriage, a normally ineffectiveconnection from saIdback Spacer key to reposition said cross-totalizerrelatively to the typewriter carriage by reconmeeting said train ofmechanism with the previously-engaged adjustable device, means forrendering said connection effective, said connection comprising apivoted element, and means controlled by said adjustable devices torender said pivoted element effective, said connecting member beingeffective after its release from one of the adjustable devices toactuate said pivotedelement, thereby rendering said repositioning meanseffective,

29. The combination with a typewriter carriage, of a cross-totalizercarriage, across-totalizer thereon, a train of mechanism comprisingapick-up barv extending between said cross-totalizer and said typewritercarriage, dogs on said typewriter car'- riage adapted to engageindividually with said pick-upbar at various intervals during the travelof the typewriter carriage, means for releasing said pick-up bar fromsaid dogs, to permit the cross-totalizer to return to its normalposition immediately after the typewriter carriage passes out of thecomputing zone. a back-spacer key for said typewriter carriage, aconnection from said back-spacer key, normally ineffective, forreconnecting said 'pick-up bar with the previously-engaged dog; meansfor rendering sald connection efi'ective, said means comprismg a pivotedelement, means for renderlng said pivoted element effective, and

said pivoted element to render said connection effectlve by the returnmovement of said plck-up bar.

30. The combination with a typewriter.

means on said pick-up bar for actuating .ment, means for rendering saidpivoted element effective, means on said pick-up bar for actuating saidpivoted element to render said connection effective by the returnmovement of'said pick-up bar, and means for retaining said connection inits effective position during an actuation thereof, so that the pick-upbar may move out of engagement with the pivoted element to bereconnected with one of said dogs.

31. The combination with a typewriter carriage, of a plurality ofadjustable pickup devices arranged at columnar positions of saidcarriage, a cross-totalizer, means engaging with said adjustable devicesto cause said. cross-totalizer to travel intermittently with saidtypewriter carriage, back-s acing means for said carriage, and means eective, when said carriage is backed to bring a columnar positionthereof to the printing point to render said back-spacing meanseffective, so that it may, when actuated, reconnect said cross-totalizerwith the previously-engaged adjustable device.

32. The combination with a typewriter carriage, of a cross-totalizer,means to causethe cross-totalizer to travel intermittently with saidcarriage, back-spacing means for said carriage, and means controlled bysaid carriage when it is backed into a computing zone to render saidbackspacing means effective to reposition said cross-totalizer rel- 5atively to said typewriter carriage.

33. The combination with a typewriter carriage, of a cross-totalizer,means to cause the cross-totalizer to travel intermittently i with saidcarriage;back-spacing means for 9 said carriage, means controlled by the'typewriter carriage when it is backed, substantially into a computingzone,'to render said back-spacing means effective, to reposition saidcross-totalizer relatively to said typewriter carriage, numeral keys,and means for rendering said numeral keys ineffective when said carriageis moved, as above stated, without the aid'of the back-spacing means.

34:. The combination with a typewriter carriage, of a cross-totalizer,means to cause the cross-totalizer to travel intermittently with saidcarriage, back-spacing means for said carriage, means controlled by thetypewriter carriage, when it is backed substan- 12 tially into acomputing zone, to render said back-spacing means effective toreposition said, :ross-totalizer relatively to said type writercarriage, numeral keys, normally ineffective locking means for saidnumeral writer carriage, numeral keys, means for rendering said numeralkeys ineffective when said carriage is moved, as above stated, withoutthe aid of said back-spacing means, and means for rendering said keyseffective.

36. The combination with a typewriter carriage, of across-totalizer,.means to cause the cross-totalizer to travelintermittently with said carriage, a back-spacer key for said carriage,means controlled by the typewriter carriage, when it is backedsubstantially into a computing zone, to render said back-spacer keyeffective to reposition said cross-totalizer relatively to saidtypewriter carriage, numeral keys, and normally ineffective lockingmeans for said numeral keys, rendered effective when said back-spacerkey is rendered effective for repositioning the cross-totalizer, saidlocking means being rendered ineffective again when said backspacer keyis actuated.

37 The combination with a typewriter carriage, of a plurality ofadjustable elements traveling therewith, a cross-totalizer, meansincluding a pick-up element tocause said totalizer to travelintermittently with said carriage, a back-spacer for said typewritercarriage, a connection from said backspacer to reposition. saidcross-totalizer, numeral keys, locking means for said numeral keys, andmeans'including an intermediate element. for rendering said lockingmeans effective, said intermediate element being actuable by any one ofsaid adjustable elements when the typewriter carriage is moved in areverse letter-feed direction into a computing zone, said pick-upelement at t h1s time being relatively stationary, but assisting toeffect the movement of said intermediate element.

38. The combination with a typewriter carriage, of a cross-totalizer,means to cause said cross-to'talizer to travel intermittently with saidcarriage, back-spacing means for said carriage, numeral keys, lockingmeans for said numeral keys, a normally ineffective connection from saidback-spacing means to reposition said cross-totalizer, and means forsimultaneously rendering said connection andsaid locking meanseffective.

39. The'combination with a typewriter carriage, of a cross-totalizer,means to cause the ,cross-totalizer to travel intermittently with saidcarriage, back-spacing means for said carriage, numeral keys, lockingmeans for said numeral keys, a normally ineffective connection from saidback-spacing means to reposition said cross-totalizer and means,rendered effective by the typewriter carriage when the latter is backedsubstantially into a computing zone, for simultaneously rendering saidconnection and said locking means effective and for retaining saidlooking means effective if the carriage is moved, as above stated,without the aid of said back spacing means. I

40. The combination with a typewriter carriage, of a cross-totalizer,means including a pick-up element for causing said crosstotalizer totravel intermittently with said carriage, a back-spacer for saidcarriage, a normally ineffective connection from said back-spacer toreposition said cross-totalizer, numeral keys, locking means for saidnumeral keys, and an intermediate element, actuable by said pick-upelement, to simultaneously render said connection and looking meanseffective.

41. The combination with a typewriter carriage, of a pluralit ofadjustable elements traveling therewith, a cross-totalizer, meansincluding a pick-up element for'caus- 'ing said cross-totalizer totravel intermittently with said carriage, a back-spacer for saidcarriage, a normally ineffective connection from said back-spacer toreposition said cross-totalizer, numeral keys, locking means for saidnumeral keys, and an intermediate element actuable by any one of saidtraveling elements, when the typewriter carriage is moved in a reverseletter-feed direction to on said swinging l'ever, said intermediateelement being pivotally' supported on said swinging lever and beingsettable to an effective position through the intermediary of saidadjustable elements which engage with said shoe on said swinging lever,said pivoted element being actuable as a lever of the first order bysaid pick-up element to simultaneously render said connection and saidlocking means effective.

43. The combination with a typewriter carnage, of a cross-totahzer,means to cause said cross-totalizer to travelintermittently with saidcarriage, a back-spacer key for said carriage, numeral keys, lockingmeans for said numeral keys, a normally ineffective connection from said,back-spacer key to reposition said cross-totalizer, means, renderedefi'ectivejby said typewriter carriage when the latter is backedsubstantially into a computing zone, for simul taneously rendering saidconnection and said locking means effective and for retaining saidlocking means effective when the carriage is so moved without the aid ofsaid back-spacer key, and means controlled by said back-spacer key torelease said lockin means.

44. The combination with a typewriter carriage, of a cross-totalizercarriage, a crosstotalizer thereon, a train of mechanism, means engagingwith said train of mechanism to cause said cross-totalizer to travelintermittently with said typewriter carriage, said train of mechanismcomprising a pickup bar pivotally connected to a bell-crank, saidbell-crank being connected to rock a shaft by an arm extendingtherefrom, said shaft having another arm connected to saidcross-totalizer carriage, and a return spring for said train ofmechanism.

45. The combination with a typewriter carriage, and'of a cross-totalizercarriage, a cross-totalizer thereon, a train of pick-up mechanismextending between said crosstotalizer carriage and said typewritercarriage, said pick-up mechanism comprising a pick-up barpivotallymounted on a rockarm, said rock-armbeing connected through intermediatemechanism to one end of a rockshaft, an arm rigidly secured to the otherend of said rockshaft, said two arms moving in parallelism, and a linkconnecting said last-mentioned arm with'said' crosstotalizer carriage.

46. The combination 'with a typewriter carriage, of a cross-totalizercarriage, a cross-totalizer thereon, a train of pick-up mechanismextending between said crosstotalizer carriage and said typewriter carriage, said pick-up mechanism comprising a pick-up bar pivotally mountedon a bell-- crank, a second bell-crank connected to move in parallelismwith said first-mentioned bell-crank, a link connecting said secondmentioned bell-crank with said cross-totalizer, and a return spring forsaid mechanism.

47. The combination with a typewriter carriage, of a cross-totalizercarriage, a cross-totalizer thereon, a train of mechanism comprising abell-crank extending between said cross-totalizer carriage and saidtypewriter carriage, an actuating element connected to said bell-crank,a back-spacer kev, a normally ineffective connection from saidback-spacer key; and means for rendering said connection effective, sothat it may engage with said actuating element to reposition saidcross-totalizer relatively to said typewriter carriage.

48. The combination with a main carriage, of a sub-carriage, means tocause said subcarriage to travel intermittently with said main carriage,back-spacing means for said main carriage, and 'means for rendering saidback-spacing means effective so that said sub-carriage may berepositioned rela tively' to said main carriage.

49. The combination with a main carriage and a plurality of adjustabledevices arranged thereon, of a sub-carriage, a train of mechanismextending between said subcarriage and said main carriage, said train ofmechanism engaging with said adjustable devices to cause saidsubcarriage to travel intermittently with said main carriage, aback-spacer key, a nection from said back-spacer key, and means forautomatically rendering said connection eiiective so that it may, whenactuated by the back-spacer key, reposition the sub-carriage relativelyto said main carriage.

50. The combination with a main carriage and a lurality of pick-updevices thereon, of a su -carriage, means engagingwith said pick-updevices to cause said sub-carriage to travel intermittently with saidmain carriage, back-spacing means for said main carriage, means actuableby said back-spacing means to reconnect said sub-carriage with apreviously-engaged pick-up device, and means for retaining saidreconnecting means in its efi'ective position.

51. The combination with a main carriage and a plurality of adjustabledevices thereon, of a sub-carriage, a train of mecha-V nismcomprising aconnecting member extending from said sub-carriage-and engagingindividually with said adjustable devices, releasing means for saidconnecting member to cause said sub-carriage to travel intermittentlywith said main carriage, a

back-spacer key for said main carriage, a

normally ineffective connection from said back-spacer key to repositionsaid sub-carriage relatively to the main carriage by reconnecting saidtrain of mechanism with the previously-engaged adjustable device, meansto render said connection efi'ective, said connection comprising apivoted element, and means controlled by said adjustable devices forrendering said pivoted element eflective, said connecting member beingeffective after its release from one of the adjustable devices toactuate said pivoted element, thereby rendering said connectionefi'ective.

52. The combination with a main carriage and a plurality of adjustabledevices arranged at'columnar positions thereon, 01

a sub-carriage, means to cause said subcarriage to travel intermittentlywith said main carriage, back-spacing means for, said main carriage, andmeans, effective when said main carriage is backed to bring a columnarposition thereof to the printing point, to render said back-spacingmeans effective, so that it may, when actuated, reconnect saidsub-carriage with the previously-engaged adjustable device.

53. The combination with a main carriage, of a sub-carriage, means tocause the sub-carriage to travel intermittently with said main carriage,back-spacing means for said main carriage, means controlled by the maincarriage, when it is moved back to bring a columnar position to theprinting point, to render said back-spacing means effective toreposition said sub-carriage relatively to said main carriage, numeralkeys, and means for rendering said numeral keys ineffective when saidmain carriage is moved, as above stated, without the aid of saidback-spacing means.

54. The combination with a main carriage, of a sub-carriage, means tocause said sub-carriage to travel intermittently with said maincarriage, back-spacing means for said main carriage, numeral keys,-locking means for said numeral keys, a normally-ineffective connection.from said back-spacing means to reposition said subcarriage, and meansfor simultaneously rendering said connection and said locking meanseffective.

55. .The combination with a main carriage, of a sub-carriage, meansincluding a pick-up element for causing said sub-carriage to travelintermittently with said main carriage, a back-spacer for said maincarriage, a normally-ineifective connection from said back-spacer toreposition said sub-carriage, numeral keys, locking means for saidnumeral keys, and means including an intermediate element forsimultaneously rendering said connection and said locking meanseffective, said: intermediate element being actuable by said pick-upelement.

56. The combination with amain carriage, of a plurality of adjustableelements thereon, a sub-carriage, means including a pick-up element tocause saidsub-carriage to travel intermittently with said main carriage,a back-spacer for said main carriage, a normally ineffective connectionfrom said back-spacer to reposition said sub-carriage, numeral keys,locking means for said numeral keys, means including an intermediatelever for simultaneously renderin said connection and .said lockingmeans e fective, a swinging lever, and a shoe on said swinging lever,said intermediate lever being pivotally supported on said swinging leverand being settable to an effective posit1on throughthe intermediary ofsaid adjustable elements which engage with said shoe on said swinginglever, saidpivoted lever being actuable as a lever of the first order bysaid pick-up element to simultane ously render said connection and saidlocking means effective.

57. The combination with printing mechanism, including a travelingcarriage and numeral keys, of a cross-totalizer, means to cause saidcross-totalizer to move with said traveling carriage through a computingzone and to be released when said carriage passes out of said zone,means toreturn said cross-totalizer to its normal position, a locknormally effective to prevent simultaneous depression of more than onenumeral key, and means whereby, upon disconnection of' saidcross-totalizer from said travelingcarriage, while the latter is in acomputing zone. said numeral-key-lock will be rendered effective toprevent the depres sion of any of said numeral keys.

58. The combination with printing mechanism, including a travelingcarriage and numeral keys, of a cross-totalizer, means to cause saidcross-totalizer to move with said traveling carriage through a computingzone and to be released when said carriage passes out of said zone,means to return said cross-totalizer to its normal position, a locknormally effective to prevent simultaneous depression of more than onenumeral key, means whereby, upon disconnection of said cross-totalizerfrom said traveling carriage, while the latter is in the computing zone,said numeral-key-lock will be rendered effective to prevent thedepression of any of said numeral keys, and means to restore saidnumeral-key-lock to its normal condition.

59. The combination with printing mechanism, including a travelingcarriage and numeral keys, of a cross-totalizer, means to move saidtotalizer through a computing zone with said carriage and to return thesame to normal position, a numeral-key-lock normally permitting thedepression of only one key at a time, means efiective when saidcross-totalizer becomes released fromits moving means, while passinthrough a computing zone, to render said ock effective to prevent thedepression of any of said numeral keys, and means to restore saidcross-totalizer to the control of said movin means and to restore saidnumeral-key-loc to normal condition.

60. The combination with printing mechanism, including a travelingcarriage and numeral keys, of a cross-totalizer, means to move saidtotalizer through a computing zone with said carriage and to return thesame to normal position, a numeral-kc -1ock normally permitting thedepression 0 only one key at a time, means rendered efi'ective when thetraveling carriage passes out of the computing zone for said crosstotalizer, to render said lock effective to lock all of said numeralkeys, and means to release said lock.

'61. The combination, with printing mechanism, including a travelingcarriage and numeral keys, of a cross-totalizer, means to move saidtotalizer through a computing zone with said carriage and to return thesame to normal position, a numeral-key-lock normally permitting thedepression of only one key at a time, means actuated by saidcross-totalizer, when returned to its normal position after passagethrough the computing zone, for rendering said numeral-keylock effectiveto prevent the depression of any of said numeral keys, and means torestore said numeraLkey-lock to its normal condition.

62. The combination with axtypewriter carriage, of a cross-totalizer,means including a pick-up element to cause said totalizer to travelintermittently with'said carriage, a back-spacer for said typewritercarriage, a connection from said back-spacer to reposition saidcross-totalizer. numeral keys, locking means for said, numeral keysnormally permitting the depression of only one of them at a time, andmeans including an intermediate element for rendering said lockingmeanseffective, said intermediate element being actuable by said pick-upelement.

63. The combination with a typewriter carriage and a plurality ofadjustable elements traveling therewith. of a cross-totalizer. meansincluding a pick-up element to cause said totalizer to travelintermittently with said carriage, aback-spacer for said typewritercarriage, a connection from said back-spacer to reposition saidcross-totalizer. numeral keys, locking means for said numeral keys,means including an intermediate elementfor rendering said looking meanseflect-ive, and a swinging element, said intermediate element beingpivotallymounted on said swinging element, said adjustable elementsengaging with said swinging element to move said intermediate element toan effective position to be actuated by said pick-up element during thereturn movement of the latter to normal position, thus rendering thesaid locking meansefi'ective. v

64. The combination with a typewriter carriage and a plurality ofadjustable elements traveling therewith, of a cross-totalizer, meansincluding a pick-up element to cause said totalizer to travelintermittently with said carriage, a back-spacer for said typewritercarriage, a connection from, said back-spacer to reposition saidcross-totalizer, numeral keys, locking means for said numeral keys,means including an intermediate element for rendering said locking meanseffective, and a swinging element, said intermediate element beingpivotally-supported thereon, said adjustable elements engaging with saidswinging element during a reverse letter-feed movement of the typewritercarriage to actuate said intermediate element, thereby rendering saidlocking means effective, the pick-up element acting as a fulcrum for theintermediate element during its movement, while the pivot for saidintermediate element on said swinging element acts as a point ofapplication for the swinging element to move said intermediate element.

65. The combination with a typewriter carriage and a plurality ofadjustable elements traveling therewith, of a cross-totalizer, meansincluding a pick-up element to cause said totalizer to travelintermittently with said carriage, a back-spacer for said typewritercarriage, a connection from said, back-spacer to reposition saidcross-totaL izer, numeral keys, locking means for said numeral keys,means including an inter-- mediate lever 'for rendering said lockingmeans effective. a swinging lever, and a shoe on said swinging lever,said intermediate lever being pivotally-supported on said swinging leverandsettable to an effective position through the intermediary of saidadjustable elements which engage with said shoe on said swinginglever,said pivoted lever bein actuable as a lever of the first order bysaidpick-up element, to render said locking means effective.

66. The combination of typewriting mechanism, including a travelingcarriage and numeral keys, ofcomputing mechanism ope 'ated by saidnumeralkeys, comprising a cross-totalizer, means to move saidcrosstotalizer through a computing zone with said carriage and to returnit to normal position, means actuated b said cross-totalizer, whenreleased by t e passage of the typewriter carriage out of the computing.zone, to prevent printing of numerals in the first letter-spacefollowing a computing zone, and means to release said preventing means.

67 T he combination of t pe-writing mechanism, including a travelingcarriage and numeral keys, of computing mechanism operatedby saidnumeral keys, comprising a cross-totalizer, means to move saldcrosstotalizer through a computing zone with said carriage and to returnit to normal osition, numeral-key-locking means norma lly permitting thedepression of only one of said keys at a time, and means whereby saidlocking means may be made effective to lock all of said numeral keysupon passage of said traveling carriage into a' computing zone. I p

68. The combination with typewriting mechanism, including a. travelingcarriage

